Suspension device for wall charts



R. HARM SUSPENSION DEVICE FOR WALL CHARTS Nov. 20, 1928. 1,692,502

Filed Nov. 28, 1925 z sheets-sheet 1 Illllll llll|| lllllll Ven/f?? F bg 7' jwa//f/Mm/ R. HARM SUSPENSION DEVICE FOR WALL CHARTS Nov.' 2o, 192s. 1,692,502

Filed Nov. 2s, 1925 z sheets-sheet 2 Patented Nov. 20,1 1928.

V"15a-"ria:NT

RUDOLF HARM, or BEnLrN-scHoNnBER'e, GERMANY.

SUSPENSION nnvrcn FORWALL CHARTS.

Application led November 28, 1925,' Serial No. 72,027, and inlGermany December 7, 1927.

The invention relates to asuspension device for wall charts, maps andthe like and more specifically to suspension devices of this description constructed as hollow rollers.

Whereas heretofore vthe chart, map or Vthe like was rolled up and down through a slit in thev hollow roller by means of a winding device provided'at the end of the roller,the present invention' consists in the upper 'rod i0 of the chart being composed of two folding parts which, when closed, form the roller.

AThe invention further consists in the suspension string or other device being connected to the folding parts of the upper rod of the chart, etc. in svuchbmanner that the weightof the chart by .hanging causes an automatic closing of the folding parts. Hereby the chart can be secured at the top between the folding parts and at the bottom to the rollingL up rod which,l when the chart is rolled up or partially unrolled, can be lodgedin the hollovs7 roller.l

In the event of the hanging device in accordance with the invention being used 5 for exhibiting consecutive single maps orV charts, the latter are divided by intermediate rods which canbe introduced into the folding roller when single charts orrmaps or parts thereof are exhibited.

In the applications of the invention shown in the drawings 1 Fig. 1 shows a rolled up chart' with vsus-1` pension device,` `1 1 1 Fig. 2 the same device with folding part 5 opened,

Fig. 3 the partially and Fig. #lathe entirely unrolled, chart. 13' l 1 Figs. 5, 6 and 7 are lateral views of Figs.l 1,2and4.V 1 Fig. 8 shows anl arrangementfor exhibit# ing four single charts or maps. 1 f 1 Fig. 9 shows the l,connection ofthese singlel charts and 1 Y y Figs 10 and ll'the mode of suspension when exhibiting the single charts.

Fig. 12 shows another arrangement of the single charts.

Figs.f13, 14, 15 and 16 elucidate in'this connection the mode of exhibiting the charts singly.

The arrangement shown in Figs. 1 to 7 may be adapted for exhibiting one or two oirlca.Il f

maps or charts, whereby one is pasted to the 1 back'of the other.

The case, which at the same time replaces the upper holding banconsists of two fold# ing parts of card-board, tin or the like,joint ed together, of which the semi-cylindrical case i ais adapted4 to receive the chart' Z),`whereby the cover c, which is likewise semi-cylindrical, closes the case a when the kchart isput away or hung up. 1 1, 1

The locking device d visible at bothends is actuated directly by pulling thev string e and in such manner that the cover c and the case a close tightly together, thus forming a cylindrical' case or holding mea-ns' cb'-c. lVhen the chart is rolled up, the string e can be wound around-the case by means keeper f and secured elastically to the button g. As a result of the'cooperationy of d and c thisquick closing effects a secure locking of the case a-c in its entire length.

On the other hand in hanging up the chart, the case closes automaticallyby its own weight hanging on the string. For this reason it makes the neat/impression of a one-piece bar. The'point of suspension ofthe chart is relieved by meansxof a viceaction of the case parts a and c clamping the chart betweenthem. The said lpoint'of suspension ispasted, asshown inFig. The# tween two strips of linen it hanging down fromfthe jointure of the case. At its lower end it is connected ina suitable manner with a vcylindrical cardboard tube f of correspondingly lesser diameter than the case @-6. `The annular'reinforcing pieces ,7c at the chart b' whenbeing' rolled up', but'are also for the purpose of rendering the case more dustproof at the ends. 1

The device is accordingly Very simple to manipulate: yThe case, lclosed in 1 by means of string e, is opened by pulling the keeper f and lifting the string-,e `from the button g, as well as by winding up the string (Fig 2). The lower shell is removed together with the chart in Fig.A 3.,-and the case @-0 automatically-closed in Fig. e'by hanging up the entireoutfit. On again unrolling thechart the case yopens automatical-` ly, as soon as the device is finally taken down from its hanger and allowed to hang both ends not only serve here as guides for down. r)The unrolling and closing is then eifected in the reverse order of that above described for opening according to Figs. 3, 2 and 1. Y

The above described suspension and protective device can, nevertheless, be used for a large number of charts or maps exhibited in promiscuous order 'to the audience in succession and from the saine position. In this manner nigs. this'description, Nos. lto 1,. in an order in which the maps or charts on the same side as 1 and 2 or 3 and 4t appear opposite each other, whereas Figs. 12 to .lo show an arrangement of simple maps or charts one below the other.

In both cases it is adv' above described device with weighting rod Z, which when the charts are not in use, can be conveniently kept in the hollow rod e', and when in use is introduced into a socket (Fig. 9) be- In the simpler case (Figs. 1 to 11) the lower tube z' is introduced into the case tirst` before and then behind the part of the chart Zi hanging down in the case and secured in its position by thecase closing automatically by virtue ot the weight of the'whole. rihe transition from chart 1 to chart 2 is.v performed by simply turning the entire chart around. In order to show chart i inthe same vision as chart 2, the tube i is taken out ot the case part a moved entirely around-r l the rolling up rod which, whenthe chart is rod Z and placed in the cover c (Fig. 11).` Chart 4l is then exhibited by turning the whole around The characteristic positions in Figs. 13 to 16 are designated and to be understood in the same manner, only in this caset-he weighting rod Z' is lodged alternately in this manner with tube in the case.

I claim:

1. A suspension device tor wall charts, maps and the like comprising two independent holding elements, one of said elements comprisingtwo tolding parts forming when closed a hollow cylinder.

2. A suspension device for wall charts, maps and the like comprising two independent holding elements, one ot said elements:

8 to 11 show four charts ot' `)le to equip the` comprising two folding parts forming when closed a hollow cylinder, and a suspending string connected with the folding parts of the upper element.

3. A suspension device for wall charts, maps and the like comprising two independent holding elements, one of said elements comprising` twoA folding" parts forming when closed a hollow cylinder, and a suspending string 'connected with the folding parts of Vthe upper element andadapted to close said folding parts automatically ,by hanging up the chart Y t 4l. fn suspension device for wall charts, maps and the like comprising upper and lower independent elements, the` upper elrejment comprising two folding parts forming when closed a hollow cylinder, and the lower element comprising a rolling up rod upon which the map is rolled whereby the chart` on one side` is secured-.between the folding parts oi th-e upper element and on the other side on the rolling up rod. Y

5. A suspension device .for wall charts, maps and the like comprising independent upper and lower elements, the upper element comprising two folding parts forming when closed a hollow cylinder and the lower element comprising a rolling.. up rod upon which the map is rolled whereby the chart on one side is secured between the folding parts of the upper element and on the other side of the rolling up rod which, whenthe chart is rolled uis adapted to be lplaced in the hollow cylin er;

A suspension device for wall. charts, maps` and the like comprising independent upper and lower elements, the upper element comprisingtwo folding` parts fiorining when closed a hollow cylinder and the lower elev ment comprising a rolling upI rodupon which the inap is rolled whereby tle chart on oneV sice is secured between the toldingparts o1 the upper element and on the other side on folding parts forming when closed., a hollow cylinder, and intermediate elements eachof which 'forms the teleline: part oi'Y two consecutive charts whereby all said elements are adapted `to be inserted into the hollow cylinder.

In testimony whereofv I have ailiXed my signature.

RUDOLF HARM', 

